Functions vs Stored Procedures

Question

Let\'s say I have to implement a piece of T-SQL code that must return a table as result. I can implement a table-valued function or else a stored procedure that returns a se

Answer 1

From the docs:

If a stored procedure meets the following criteria, it is a good candidate for being rewritten as a table-valued function:

• The logic is expressible in a single SELECT statement but is a stored procedure, rather than a view, only because of the need for parameters.

• The stored procedure does not perform update operations, except to table variables.

• There is no need for dynamic EXECUTE statements.

• The stored procedure returns one result set.

• The primary purpose of the stored procedure is to build intermediate results that are to be loaded into a temporary table, which is then queried in a SELECT statement.